Learn the גמרא דף ד: “מחיצות (twelve lines from bottom of Amud) until the two dots
Questions:
How do we learn the minimum height of a mechitza from the Aron and the Kapores?
Why didn’t the Gemara list other halachos of Mechitza for example how many walls are needed to create a reshus hayachid?
See גאון יעקב
https://hebrewbooks.org/pdfpager.aspx?req=14053&st=&pgnum=17
Next Sugya – קורה
Learn the גמרא דף ד: “היה גבוה מעשרים (two dots – six lines from bottom of Amud) until the two dots on דף ה
Question on רש”י דף ד: “מותר:
Rashi says קורה משום היכר so why does Rashi need to add that we view the edge of the קורה as descending and creating a closure.
Learn מהרש”א
https://hebrewbooks.org/pdfpager.aspx?req=14312&st=&pgnum=263
Learn תוס’ “מותר